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fourier:start [2026/04/28 22:06] – fourier: create campaign index page (4 series + RFC + 3 upstream drafts) markus_fritschefourier:start [2026/04/30 10:26] (current) – fourier paused pending GL/EGL pipeline campaign baseline; live tasks: chromium-fourier build + vb2 RFC v2 markus_fritsche
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 Rockchip + Mali-class ARM hardware. Rockchip + Mali-class ARM hardware.
  
-  * Public face: [[https://github.com/marfrit/fourier|github.com/marfrit/fourier]] — sibling subdirs ''chromium-fourier/'', ''qt6-base-fourier/'', ''kwin-fourier/'', ''docs/'', ''tools/'' +  * Public face: [[https://github.com/marfrit/fourier|github.com/marfrit/fourier]] — sibling subdirs ''chromium-fourier/'', ''qt6-base-fourier/'', ''kwin-fourier/'', ''docs/'', ''tools/'' 
-  * Local Arch packaging + investigation notes: [[https://git.reauktion.de/marfrit/marfrit-packages|gitea/marfrit-packages]] under ''arch/{chromium,qt6-base,kwin,firefox}-fourier/'', ''kernel/vb2-dma-resv-rfc/'', ''upstream-submissions/''+  * Local Arch packaging + investigation notes: [[https://git.reauktion.de/marfrit/marfrit-packages|gitea/marfrit-packages]] under ''arch/{chromium,qt6-base,kwin,firefox}-fourier/'', ''kernel/vb2-dma-resv-rfc/'', ''upstream-submissions/''
   * Reference target: **ohm** (PineTab2 / RK3566 / Mali-G52 / panfrost / mainline 6.19.10 / KDE Plasma 6.6.4 Wayland)   * Reference target: **ohm** (PineTab2 / RK3566 / Mali-G52 / panfrost / mainline 6.19.10 / KDE Plasma 6.6.4 Wayland)
  
-===== Status snapshot — 2026-04-28 evening =====+===== Status — paused 2026-04-30 ===== 
 + 
 +Project paused pending the GL/EGL pipeline campaign baseline. The browser-side ship-gate (1080p30 YouTube ≤ 30 % CPU, no drops) is gated on the Mali-side EGLImage import cost being addressed; running browser measurements before that lands produces known-failing results that contaminate the 8-phase loop. 
 + 
 +Freeze-state record: [[fourier:phase5_2026-04-30|Phase 5 review handover, 2026-04-30]]. 
 + 
 +Live tasks that continue independently: 
 +  * **chromium-fourier build** — finish the build + publish; package ships, measurement deferred. 
 +  * **vb2 dma_resv RFC v2** — kernel-side, separate cadence. 
 + 
 +Re-entry condition: GL fix campaign surfaces something useful that changes the GL-consumer baseline. 
 + 
 +===== Status snapshot — 2026-04-30 =====
  
 ^ Series ^ Patches ^ State ^ Validated where ^ Notes ^ ^ Series ^ Patches ^ State ^ Validated where ^ Notes ^
 | **chromium-fourier** | 4 | end-to-end smooth playback | ohm | bbb_1080p30_h264.mp4: ~81 % chrome CPU vs ~131 % pre-patch baseline (~3.8× reduction) | | **chromium-fourier** | 4 | end-to-end smooth playback | ohm | bbb_1080p30_h264.mp4: ~81 % chrome CPU vs ~131 % pre-patch baseline (~3.8× reduction) |
-| **qt6-base-fourier** | 3 | shipped + upstream-targetable | ohm + fresnel | pure spec-correctness GLES3 fix; zero ''GL_INVALID_VALUE'' in journal post-relogin | +| **qt6-base-fourier** | 3 | shipped + upstream-targetable | ohm + fresnel | pure spec-correctness GLES3 fix; zero ''GL_INVALID_VALUE'' in journal post-relogin | 
-| **kwin-fourier** | 2 (1 shipped + 1 upstream-shape) | upstream-bound | ohm | side-effect: every ''wp_linux_dmabuf-v1'' client snappier on Mali-class HW | +| **kwin-fourier** | 1 shipped (0001-skip-wait) | shipped, MR 9157 closed | ohm | reverted to 0001 after MR review found 0002 technically wrong; goes no-op once vb2-dma-resv RFC lands | 
-| **vb2-dma-resv RFC** | 3-patch kernel RFC | drafted, ready for ''send-email'' | — | the fix that makes the kwin-fourier wait premise actually true | +| **vb2-dma-resv RFC** | 3 sent 2026-04-29 | v1 reviewed (Nicolas + Christian); v2 sketch backlogged | — | not a NACK; attach point moves to ''device_run'', opt-in flag added, lockdep annotated for v2 | 
-| **firefox-fourier 150.0.1** | 4 | partial — gates 1+4 verified, 2+3 corrected today, rebuild pending | fresnel | root cause identified via ''MOZ_LOG'': must probe by ''h264_v4l2request'' codec name first |+| **firefox-fourier 150.0.1** | 4 | partial — gates 1+4 verified, 2+3 corrected today, rebuild pending | fresnel | root cause identified via ''MOZ_LOG'': must probe by ''h264_v4l2request'' codec name first |
 | **upstream submission drafts** | 3 | written, awaiting validation gates | — | bugreports.qt.io, invent.kde.org MR, linux-media RFC | | **upstream submission drafts** | 3 | written, awaiting validation gates | — | bugreports.qt.io, invent.kde.org MR, linux-media RFC |
  
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   * [[https://github.com/marfrit/fourier|github.com/marfrit/fourier]]   * [[https://github.com/marfrit/fourier|github.com/marfrit/fourier]]
-    * ''chromium-fourier/'' — 4 patches +    * ''chromium-fourier/'' — 4 patches 
-    * ''qt6-base-fourier/'' — 3 patches +    * ''qt6-base-fourier/'' — 3 patches 
-    * ''kwin-fourier/'' — 2 patches +    * ''kwin-fourier/'' — 2 patches 
-    * ''docs/dmabuf-zero-copy.md'' — panfrost ''external_only'' finding + cascade +    * ''docs/dmabuf-zero-copy.md'' — panfrost ''external_only'' finding + cascade 
-    * ''tools/'' — capture / measurement helpers+    * ''tools/'' — capture / measurement helpers
  
 ==== Local (gitea/marfrit-packages) ==== ==== Local (gitea/marfrit-packages) ====
  
-  * ''arch/chromium-fourier/'' — PKGBUILD + patches + ''NEXT.md'' campaign chronology + ''KWIN_PIVOT.md'' discovery story +  * ''arch/chromium-fourier/'' — PKGBUILD + patches + ''NEXT.md'' campaign chronology + ''KWIN_PIVOT.md'' discovery story 
-  * ''arch/qt6-base-fourier/'' +  * ''arch/qt6-base-fourier/'' 
-  * ''arch/kwin-fourier/'' +  * ''arch/kwin-fourier/'' 
-  * ''arch/firefox-fourier/'' +  * ''arch/firefox-fourier/'' 
-  * ''kernel/vb2-dma-resv-rfc/'' — 3-patch kernel RFC +  * ''kernel/vb2-dma-resv-rfc/'' — 3-patch kernel RFC 
-  * ''upstream-submissions/qt6-base-fourier/qt-bug-report.md'' +  * ''upstream-submissions/qt6-base-fourier/qt-bug-report.md'' 
-  * ''upstream-submissions/kwin-fourier/kde-mr-body.md'' +  * ''upstream-submissions/kwin-fourier/kde-mr-body.md'' 
-  * ''upstream-submissions/vb2-dma-resv/lkml-submission-notes.md''+  * ''upstream-submissions/vb2-dma-resv/lkml-submission-notes.md''
  
 ---- ----
  
 //Page index created 2026-04-28 from a fourier-campaign sync. The //Page index created 2026-04-28 from a fourier-campaign sync. The
-''chromium-fourier'' sub-page predates the end-to-end win and reflects the +''chromium-fourier'' sub-page predates the end-to-end win and reflects the 
-state on 2026-04-26; the ''[[fourier:patch_series|patch_series]]'' page+state on 2026-04-26; the ''[[fourier:patch_series|patch_series]]'' page
 carries the current 4-patch shape.// carries the current 4-patch shape.//
  
fourier/start.1777414011.txt.gz · Last modified: by markus_fritsche